forked from KolibriOS/kolibrios
115 lines
3.4 KiB
C
115 lines
3.4 KiB
C
/**************************************************************************
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*
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* Copyright 2009 Younes Manton.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef vl_mpeg12_decoder_h
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#define vl_mpeg12_decoder_h
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#include "pipe/p_video_decoder.h"
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#include "vl_mpeg12_bitstream.h"
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#include "vl_zscan.h"
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#include "vl_idct.h"
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#include "vl_mc.h"
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#include "vl_vertex_buffers.h"
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#include "vl_video_buffer.h"
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struct pipe_screen;
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struct pipe_context;
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struct vl_mpeg12_decoder
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{
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struct pipe_video_decoder base;
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unsigned chroma_width, chroma_height;
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unsigned blocks_per_line;
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unsigned num_blocks;
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unsigned width_in_macroblocks;
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bool expect_chunked_decode;
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enum pipe_format zscan_source_format;
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struct pipe_vertex_buffer quads;
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struct pipe_vertex_buffer pos;
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void *ves_ycbcr;
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void *ves_mv;
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void *sampler_ycbcr;
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struct pipe_sampler_view *zscan_linear;
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struct pipe_sampler_view *zscan_normal;
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struct pipe_sampler_view *zscan_alternate;
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struct pipe_video_buffer *idct_source;
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struct pipe_video_buffer *mc_source;
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struct vl_zscan zscan_y, zscan_c;
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struct vl_idct idct_y, idct_c;
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struct vl_mc mc_y, mc_c;
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void *dsa;
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unsigned current_buffer;
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struct vl_mpeg12_buffer *dec_buffers[4];
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};
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struct vl_mpeg12_buffer
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{
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struct vl_vertex_buffer vertex_stream;
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unsigned block_num;
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unsigned num_ycbcr_blocks[3];
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struct pipe_sampler_view *zscan_source;
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struct vl_mpg12_bs bs;
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struct vl_zscan_buffer zscan[VL_NUM_COMPONENTS];
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struct vl_idct_buffer idct[VL_NUM_COMPONENTS];
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struct vl_mc_buffer mc[VL_NUM_COMPONENTS];
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struct pipe_transfer *tex_transfer;
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short *texels;
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struct vl_ycbcr_block *ycbcr_stream[VL_NUM_COMPONENTS];
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struct vl_motionvector *mv_stream[VL_MAX_REF_FRAMES];
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};
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/**
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* creates a shader based mpeg12 decoder
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*/
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struct pipe_video_decoder *
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vl_create_mpeg12_decoder(struct pipe_context *pipe,
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enum pipe_video_profile profile,
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enum pipe_video_entrypoint entrypoint,
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enum pipe_video_chroma_format chroma_format,
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unsigned width, unsigned height, unsigned max_references,
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bool expect_chunked_decode);
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#endif /* vl_mpeg12_decoder_h */
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